# Percona Server vs PostgreSQL

| Attribute | Percona Server | PostgreSQL |
|---|---|---|
| **vioscaleAI score** | 56.4 (36% (low)) | 61.3 (60% (medium)) |
| activity.commits_last_30d | 33 | 100 |
| adoption.dependent_repos | - | 0 |
| adoption.github_stars | 1,275 | 22,285 |
| adoption.stackoverflow_questions | - | 170,000 |
| content.faq | `[{"answer":"A free, fully compatible drop-in replacement for MySQL that delivers improved performance and instrumentation. It is built on MySQL foundations and designed for organizations seeking enhanced reliability and monitoring without switching databases. It is indexed under Relational Databases.","source":"https://www.percona.com/blog/percona-live-europe-discounted-pricing-community-dinner/","question":"What is Percona Server?","confidence":0.6},{"answer":"Percona Server is open source, so it can be self-hosted and used at no licence cost. Pricing changes often, so verify at source before relying on it.","source":"https://www.percona.com/blog/percona-live-europe-discounted-pricing-community-dinner/","question":"Is Percona Server free to use?","confidence":0.6},{"answer":"Yes. Percona Server can be deployed self-hosted, so it does not have to run on the vendor's infrastructure.","source":"https://www.percona.com/blog/percona-live-europe-discounted-pricing-community-dinner/","question":"Can Percona Server be self-hosted?","confidence":0.6}]` | `[{"answer":"PostgreSQL is a free, open-source relational database system that emphasizes extensibility and standards compliance. It provides robust support for complex data types and advanced query capabilities, making it suitable for both small applications and large-scale enterprise deployments.","source":"https://www.postgresql.org","question":"What is PostgreSQL?","confidence":0.95},{"answer":"PostgreSQL is open-source and available at no cost under the PostgreSQL License. Organizations can deploy and modify the software without paying licensing fees, though managed hosting services may charge for their infrastructure and support.","source":"https://www.postgresql.org/about/licence/","question":"Is PostgreSQL free to use?","confidence":0.95},{"answer":"PostgreSQL is cross-platform and runs on Linux, Unix, Windows, macOS, and other operating systems. This broad platform support makes it accessible for diverse infrastructure environments.","source":"https://www.postgresql.org/download/","question":"What operating systems does PostgreSQL support?","confidence":0.95},{"answer":"PostgreSQL fully implements ACID (Atomicity, Consistency, Isolation, Durability) transactions, ensuring that database operations are reliable and data remains consistent even in the face of failures or concurrent access patterns.","source":"https://www.postgresql.org/docs/current/tutorial-concepts.html","question":"Does PostgreSQL guarantee data integrity through ACID compliance?","confidence":0.95},{"answer":"Organizations often evaluate PostgreSQL alongside MySQL for relational workloads, Oracle or Microsoft SQL Server for large enterprise deployments, and NoSQL systems like MongoDB for document-based requirements. The choice depends on specific priorities around complexity, scalability, and data structure needs.","source":"https://www.postgresql.org","question":"What are common database alternatives to PostgreSQL?","confidence":0.9},{"answer":"PostgreSQL can be deployed on self-managed infrastructure using binary installations or containerization, or through managed database services from cloud platforms such as AWS RDS, Google Cloud SQL, and Azure Database for PostgreSQL. Managed services typically handle automated backups, scaling, and routine maintenance.","source":"https://www.postgresql.org/download/","question":"How can developers deploy PostgreSQL?","confidence":0.9},{"answer":"PostgreSQL supports JSON/JSONB data types for semi-structured data, full-text search capabilities, window functions, Common Table Expressions, and custom extensions through its extensibility architecture. These features reduce the need for application-layer complexity and the addition of specialized separate systems.","source":"https://www.postgresql.org/docs/current/sql-syntax.html","question":"What advanced features enable complex analytical and transactional work in PostgreSQL?","confidence":0.9},{"answer":"PostgreSQL is used in production by thousands of organizations ranging from startups to large enterprises. It includes comprehensive features for data replication, backup strategies, and high-availability configurations, making it a reliable choice for applications where data consistency and uptime are critical.","source":"https://www.postgresql.org/","question":"Is PostgreSQL suitable for production and mission-critical applications?","confidence":0.9}]` |
| deployment.options | `{"cloud":true,"self_hosted":true}` | `{"cloud":true,"self_hosted":true}` |
| description.long | An open-source MySQL-compatible database server designed for improved performance, scalability, and visibility. It provides integrated instrumentation for monitoring and advanced backup functionality for enterprise deployments. | PostgreSQL is an open source relational database with over 35 years of active development. It supports transactions, user-defined functions, and a broad subset of SQL, widely used for data storage and retrieval in applications ranging from small projects to enterprise deployments. |
| features.capabilities | `{"isolation":"serializable","sql_model":"full_sql","deployment":"self_hosted","serverless":false,"consistency":"strong","geo_spatial":"native","replication":"sync","extensibility":true,"json_document":true,"license_class":"copyleft","horizontal_scale":"read_replica","acid_transactions":"full","automatic_failover":true,"wire_compatibility":"mysql"}` | `{"hosting":"both","sql_model":"full_sql","data_model":"relational","deployment":"self_hosted","serverless":false,"geo_spatial":"extension","sql_support":true,"extensibility":true,"json_document":true,"license_class":"permissive","managed_cloud":true,"vector_search":true,"horizontal_scale":"read_replica","acid_transactions":"full","automatic_failover":true,"horizontal_scaling":true}` |
| integrations.count | - | 6 |
| integrations.list | - | `[{"name":"CloudNativePG"},{"name":"Kubernetes"},{"name":"Patroni"},{"name":"pgAdmin"},{"name":"pgVector"},{"name":"PostGIS"},{"name":"pgAudit"},{"name":"Spock"},{"name":"Cilium"},{"name":"Submariner"}]` |
| language.primary | C++ | C |
| license.spdx | - | PostgreSQL |
| market.availability | - | `{"source":"https://www.postgresql.org","confidence":0.95,"primaryMarkets":[],"availabilityScope":"global","availableCountries":[],"notAvailableCountries":[]}` |
| platform.support | - | `{"mac":true,"linux":true,"windows":true}` |
| pricing | `{"type":"open_source","summary":"Completely free and open source","freeTier":true,"sourceUrl":"https://www.percona.com/blog/percona-live-europe-discounted-pricing-community-dinner/","retrievedAt":"2026-08-14T16:35:48.210Z"}` | `{"type":"open_source","freeTier":true,"sourceUrl":"https://www.postgresql.org","retrievedAt":"2026-08-14T12:11:14.172Z"}` |
| pricing.free_tier | yes | yes |
| pricing.model | commercial | open_source |
| pricing.price_level | free | free |
| pricing.transparent | yes | - |
| release.cadence_days | - | 90 |
| release.history | `[{"url":"https://github.com/percona/percona-server/releases/tag/Percona-Server-5.5.55-38.8","date":"2017-07-05T20:27:17Z","type":"stable","version":"Percona-Server-5.5.55-38.8"},{"url":"https://github.com/percona/percona-server/releases/tag/Percona-Server-5.7.17-13","date":"2017-07-05T20:28:28Z","type":"stable","version":"Percona-Server-5.7.17-13"}]` | - |
| reliability.status_page | yes | - |
| security.disclosure_policy | yes | yes |
| security.scorecard | 6 | 6.1 |
| security.trust_center | https://www.percona.com/blog/security-advisory-cve-affecting-percona-monitoring-and-management-pmm/ | https://www.postgresql.org/support/security/faq/2013-04-04/ |
| security.vulnerabilities | - | `{"count":0,"source":"https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=helm&package_name=openstack-helm%2Fpostgresql&per_page=100","last_12m":0,"max_severity":null}` |

## Capabilities (Relational Databases)

| Capability | Percona Server | PostgreSQL |
|---|:--:|:--:|
| **Core** |  |  |
| SQL model | Full SQL | Full SQL |
| **Transactions** |  |  |
| ACID transactions | Full | Full |
| Highest isolation level | Serializable | - |
| **Consistency** |  |  |
| Consistency | Strong | - |
| **Scale** |  |  |
| Horizontal scale | Read replicas | Read replicas |
| **Replication** |  |  |
| Replication | Sync | - |
| **Availability** |  |  |
| Automatic failover / HA | ✓ | ✓ |
| **Deployment** |  |  |
| Deployment | Self-hosted | Self-hosted |
| Serverless / scale-to-zero | ✗ | ✗ |
| **Compatibility** |  |  |
| Wire compatibility | MySQL protocol | - |
| **Extensibility** |  |  |
| Extensions / plugins / UDFs | ✓ | ✓ |
| **Licensing** |  |  |
| Licence class | Copyleft | Permissive OSS |
| **Data types** |  |  |
| JSON / document support | ✓ | ✓ |
| Geo / spatial | Native | Extension |

*Source: vioscaleAI. Generated 2026-10-16T19:00:58.538Z. "-" = undocumented, not absent.*